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  4. v0 API (Vercel)
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v0 API (Vercel)

The Vercel v0 API allows developers to generate production-ready UI components for React and Next.js applications from text prompts, offering a free tier of 200 credits per month.

Developed by Vercel

Live API
99.95%Uptime
150msLatency
420Stars
API KeyAuth
NoCredit Card
RESTStyle
v1Version

Reference

API Endpoints

Endpoints

Available routes, request structures, and code examples.

Generate UI code from natural language prompts

Endpoint URL
https://api.v0.dev/v1/generate
Code Example
curl -X POST 'https://api.v0.dev/v1/generate' \
  -H 'Authorization: Bearer YOUR_API_KEY'
Request Payload
{
  "prompt": "A button with blue background"
}
Expected Response
{
  "code": "<button style=\"background-color: blue;\">Button</button>"
}
Version:v1
Limit:Limited free tier

Integration

Quick Start

cURL ExampleREST
curl -X GET "https://api.v0.dev/v1/v1/chat/completions"

Docs

Technical Documentation

What this API does

The Vercel v0 API enables developers to generate production-ready React and Next.js UI components directly from text prompts, leveraging OpenAI-compatible chat completions within their web applications. It supports rich input types including text and images, making it ideal for creating dynamic, interactive user experiences.

How it works

Using the v0 API, developers can submit text prompts to generate UI components. The API transforms these prompts into production-ready React components that can be easily integrated into Next.js applications. It also supports streaming responses for real-time feedback, enriching the development process and improving user experience.

Authentication

Authentication is managed via API keys, ensuring secure access for production environments. Developers can create and manage their API keys through the Vercel dashboard to authenticate requests.

Example usage

  • POST /generate - Use this endpoint to submit a text prompt and receive a generated component in response.
  • GET /components - Retrieves a list of existing components based on defined queries.
  • POST /upload-image - Submit images alongside text prompts to enrich the UI generation process.

Limits

Developers are allocated up to 200 credits per month on the free tier. Detailed rate limits are not provided, but usage should be monitored to ensure optimal performance.

Ideal use cases

  • Rapid prototyping of UI components for web applications.
  • Building interactive web applications using React or Next.js.
  • Creating custom components based on text input for dynamic user experiences.
  • Demonstrating AI-driven UI generation in educational platforms.

Examples

Real-World Applications

  • Creating interactive web applications with AI-driven chat features
  • Building dynamic content generation systems
  • Enhancing user engagement via real-time conversational UI
  • Integrating AI chat functionalities into Next.js projects
  • Generating Tailwind CSS-based UI components automatically

Evaluation

Advantages & Limitations

Advantages
  • ✓ Seamless integration with Next.js and React
  • ✓ Supports streaming responses for real-time applications
  • ✓ No credit card required to start free tier
  • ✓ Output is tailored for modern UI frameworks like shadcn/ui and Tailwind CSS
Limitations
  • ✗ API key required which restricts anonymous access
  • ✗ Rate limits are dependent on subscription tier without detailed public documentation
  • ✗ Limited SDK availability compared to other AI APIs
  • ✗ Some advanced features require Premium or Team subscription

Support

Frequently Asked Questions

Important Notice

Verify Before You Decide

Last verified · Apr 30, 2026

The details on this page — including pricing, features, and availability — are based on our last review and may not reflect the provider's current offering. Providers update their products frequently, sometimes without prior notice.

What may have changed

Pricing Plans
Features & Limits
Availability
Terms & Policies

Always visit the official provider website to confirm the latest pricing, terms, and feature availability before subscribing or integrating.

Check official site

External Resources

Documentation Official Website Pricing Details Postman Collection

API Specifications

v1
Pricing Model
Subscription-based with Free, Premium, and Team plans
Credit Card
Not Required
Response Formats
JSON
Supported Languages
5 Languages
SDK Support
JavaScript, TypeScript
Rate Limit

1000 requests per minute for Premium; lower limits for other plans

Time to Hello World

Less than 30 minutes for API key acquisition and basic integration

Free Tier

200 API credits per month free usage with no credit card required

Best For

Developers building AI-enhanced web apps with React and Next.js

Not Ideal For

Projects requiring extensive image processing or non-web integration

Tags

#tailwind#shadcn#vercel#v0#nextjs#react#code-generation#ai#ui-generation

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